This inventor holds 1 USPTO granted patent. Top assignee: Spectracom Corporation. Active years: 1985.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1985
Title: The Innovations of Joel E. Sandahl
Introduction
Joel E. Sandahl is an accomplished inventor based in Fairport, NY (US). He has made significant contributions to the field of oscillator systems, particularly with his innovative approach to frequency control. His work has implications for various applications that require precise timing and frequency accuracy.
Latest Patents
Joel E. Sandahl holds a patent for a "Disciplined oscillator system with frequency control and accumulated." This disciplined oscillator system features a standard oscillator that is automatically corrected for both frequency errors and time error accumulation. It maintains a constant frequency signal derived from the WWVB carrier frequency and the WWVB TIME CODE. This system ensures overall frequency accuracy within one part in 10^9, despite challenges such as oscillator aging, jitter, and distortion due to propagation delays and noise. The system employs a counter with measurement accuracy greater than one part in 10^10 to detect frequency errors. Correction signals are derived by averaging frequency variances obtained in successive measurement cycles. Timing errors are corrected through dividers controlled by a timing discriminator, which responds to timing variance between signals from the standard oscillator and the WWVB reference.
Career Highlights
Joel E. Sandahl has made a notable impact in his field through his work at Spectracom Corporation. His innovative designs and solutions have contributed to advancements in oscillator technology, enhancing the accuracy and reliability of frequency control systems.
Collaborations
Throughout his career, Joel has collaborated with esteemed colleagues, including Robert J. Hesselberth and Thomas P. Donaher. These collaborations have fostered a creative environment that has led to significant technological advancements.
Conclusion
Joel E. Sandahl's contributions to oscillator technology exemplify the importance of innovation in achieving precise frequency control. His work continues to influence the field and inspire future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile